Sheathing driving tool



Oct. 20, 1931. N, Q SHAW 41,827,957

SHEATHING DRIVING TOOL Filed Feb. l1. 1929 9( m ATTORNEY N. CARTER snAw, OE CLEVELAND, cmo, AssreNOn To THE CLEVELAND ROCKDRIEL COMPANY, or CLEVELAND, onion CORPORATION OE OHIO r i SHEATHING DRIVING TOOL Application filed February 11,',1929.l Serial NO. 339,046.

This invention relates to improvements intools for drivingosheathing and sheet piling, particularly to toolswhich are intended particularly frequent where it becomes nec- *Y cssary'to use the ytools with some side strain,

` as often must be done in straightening a sheet or apile while being driven or in Counteracting a tendency which it may show to drive crooked. Y y y 4One of the objects of myfinventionis accordingly to produce ina tool of thischaracter a Connection 4in the nature of a ballr and socket oint for the transmission of the driv Y ing thrust, thereby eliminatingthe injurious effects caused by the vfatigue of the metal which results from misaligned application'v of the driving force.

Another obj ect of the invention is the production of a tool of this nature vwhich is readily accommodated to work in varied poe sitions without undue strain either on the op-A erator or on the mechanism.y 'A further object isfthe provision of av tool which may be vreadily attached to or detached from arock drill or similar apparatus of standard type, thereby adapting such portable motor driving means to a wider variety of uses.`

An additional object is the production of an adapting assembly which may bereadily and cheaply manufactured and the parts of which may be quickly replaced without the necessity of renewing the entire tool in case of breakage of an element thereof, the entire organization being of sturdy and simple construction.

Gther objects and purposes of the invention will be readily apparent to those skilled in the art from the following specification and the accompanying drawings which illustrate a preferred embodiment of the present `invention. l

i' i `In the drawingsi,

fFig. 1 is a perspective view,-wherei'n'jcerA tain elements rare shown in; section, illustrating a preferred embodiment ofthe driving attachment connected toa rock drill and po; sitioned upon the work; l K

Fig. 2 4is a longitudinal cross section of the driving head showing. in elevation the driving arm connected thereto; Fig. 3 is a'view corresponding to'Figl2 but taken on a plane at right anglesthereto; Fig. t is an elevation jof, thepower trans; mitting element, or. arm which connects the driving head of my improved tool with the drill; and Y f i Fig. 5 is a detailed sectionalview of the Aanvil on ak central longitudinal plane. j

The driving tool consists of a rod or arm 1(1), and an anvil 11. The upper portion v12 yof the arm 10forms a shank to fit lthe tool chuck of a rock drill or like power-,applying ymeans, ,and the'lower end of the arm terminates in a mushroom head 15, downwardly convened, and heldin contactwith a corresponding, but larger, concave surface 16 on `the anvil top by a resilient collar 17, which is held `within a hollowy upwardly directed boss 118 by a shoulder 19 and kept in place onL the arm by the head 15. The boss is counterbored at the bottom, as at 20,' to enlarge the concave face 16, and the diameter` of the opening delined bythe shoulder 19 is greater than that ofthe arm 10, whereby play in any direction is possible between'k the anvil and the arm, although ,theY collar 17 'holdsthem in alignment when no -side stresses are applied. Insertion and removal ofthe arm 10V and colsuch as a separable side pieceQl, bolted into the boss 18. l f y A The anvil 11. includes a flat driving face 22 adapted to engage the upper edge of a sheath'- ing plank, such/as 23,.and two depending flanges 24E-+24 to hold the anvil thereon. The width of the face 22 and the spacing of the flanges 24 will ordinarily ybeproportioned to the size of thel Work, to hold theanvil securelyupon the upper edge of the plank, and prevent spreading ofthe plank end um der driving blows.,`

'lar 17V`is :provided for by suitable means,

Referring particularly to Fig. 1, the rock l `drill lato whichV my improved driving tool tional type, including a. cylinder in which a piston 26 reciprocated, the supply of compressed air or other actuating fluid being controlled by a valve 27 adjacent the. handle 28. The usual connections are provided for the supply of compressed air or thelike, such as throughv a suitable connection 29..

The reciprocation of the piston 26 is transmitted by a tappet 30 to the driving tool.

In using my invention the anvil 11 mayV be adjusted upon the upper end of a sheet orV plank of sheathing and the rock drill 14 set in operation irrespective of any moderate divergence or misalignment between the axis of the driving tool and the axis of the sheathing. In like manner the driving element may be inclined to one side or the other to overcome any tendency of the sheathing to drive crooked. Within 'the limits which 'are allowed by the construction of the tool any such misalignment between f the piling and the driver is taken care of-by the play of the arm l0 relativelylto the anvil, so that the setting up of side strains or bending moments of serious consequence in the arm itself isavoided. Consequently the life of the driving apparatus is greatly prolonged for the reason that the various `elemens of the apparatus vindividually mit;

Because my driving attachment is made and an anvil on the end thereof having a working face vin fixed relation to said arm, and a limited ball-and-socket joint between said arm and said anvil, a yieldable element in operative relation to said yjointpermitting said relation to be altered Vbut constantly tending to restore the same.

2. A driving tool comprising an anvil and a thrust-transmitting arm, said anvil including a work-engaging face, connecting means `between said anvil and said arm, said connecting means including a resilient element tending to hold the arm normal to said face. 3. A tool for driving sheathing comprising an arm and an anvil, complemental bearing faces thereon, said faces being of unequal size topermit misalignment therebetween, a boss on said anvil, adapted to receive'said arm,

have only direct thrust to trans- `dependent flanges on eitherjside thereof, a

concave upper face, an upstanding hollow boss above said face, a passage therethrough of vless diameter than said face,'a removable side in said'boss and a shoulder at top of said passage, an impulse transmitting arm receiv- Ved in said boss, anl enlarged convex head on fthe lowerI end of said arm of less diameter than said concavel face, a resilient collar sui'- roundmg said arm wlthinsaid boss and held inplace respectively by said shoulder and Y said jliead, and a passagedefined'by said shoulder of greater diameter than saidarm,

whereby said arm is movable in said passage and said head isv held in contact with said concave face but is movable in all directions with respect thereto.

5. A pile driving tool comprising an anvil adapted to contact with a member to be driven, an arm loosely carried `by said anvilv adapted to transmit a drivingV force thereto, and means for resiliently maintaining said arm in contact with said anvil.

6. In combinationwith a percussive machine, a pile driving tool associated therewith including an'anvil adapted to contact with a pile to be driven, a member arranged to receive the blows of said machine and transmit the V`same to said anvil and means forresiliently maintaining said member in contact with said anvil.

7. A pile `driving tool adapted to be actuated Vby a percussive machine ofthe rockdrill type and including an anvil adapted to con tact with a member to be driven, an Varm adapted to be inserted in a percussion machine to `receive the Vblows thereof and transmit the same to said anvil and means resiliently maintaining said armin contact with said anvil. Y

In testimony whereof I 'hereunto aHiX my signature this 7th day of February, 1929.

v N. CARTER SHAW.

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